Strip whitespace from 2nd and 3rd fields
Deal with country names from title

* Also capitalise in a more industrial-strength fashion
Add fixers that can:

* Collapse list items into one list (used for short sections of single-item list errors)
Revert "Add fixers that can:"

This reverts commit d0a2480634ad3dd6b6915c18de7709854c0e597b.
Convert "extra" markup to markdown

* Consists pretty much only of extra <ul> tags lost in the middle of the central
  table.
Add document summary
Rename document markdown -> body
Remove Country.parse
Remove DateRange.parse
Add DateRange#type

* Can be average or spot at present
Add ability to dump markdown on crawl
Add an ImportSheet that will drive Publisher

* Still no first_published